Winding machine



P 1932- G. F. ECKSTEIN 1,875,861

WINDING MACHINE Filed Sept? 9, 1927 fir To PAM'Y,

Patented Sept. 6, 1932 GEORGE n, noxsrn'm, or nnrrArto, Your;

maniac: ivmczn'm ap neauanl niea iseprenber 9,1927. Serial No. 21 8, 186. i

have been coated with a viscous substance,

5 and is an improvement upon the winding head disclosed by me in a pending application for atent filed January 21,1927, and. bearing erial'No; 162,564.

The. primary object of my lnventionis to provide a-winding head that can be readily adjusted to the varying. conditions which arise in winding roofing strips into-hollow rolls. 7

A further obj set of nay invention is to provide a winding head which utilizes a plurality of rotata-bleroll'sin such a manner that the angle at which the material beingwound approaches the roll will be'suchas to make the winding certain-andaceurate. 4

' Other objects and advantages of my in; venti-on will-be pointed out in the specification, claim and drawing, which: i I Fig. l is a sideelevation of a portion of an automatic winding machine showing my improvement. I P v Fig.2 isa graphical illustration et the angles at, which the material approaches the Many unsuccessful attempts have been m-adeto construct an automatic winding head capable of winding into hollow roll-sstripsof; V flexible rr-iaterial previously coated-"with a viscous substance. ,Especially is this true of roofing material, and until the invention scribed all roofing has been wound byhand.

Inthe manufacture of various grades oif roofing material, thin broad sheets of paper, or other fibrous material are drawn through hot liquid-orsemi-liquid asphalt, coal tar,- or other suitablecoating. While still hot and viscous the surfaceis covered with: a coat of finely ground stone, slate, or other suitable material. The coated sheets are then passed over a large series of'horizontally dis:

and-installation of the machine herein deposed rolls so that the sheets-hang down be tween the rollers festoons, to permit of. more rapid drying. It is, thlereioreyevident that under the most careful and efficientway 0t handlingand,;coating?-;the material, the 5g thickness oii the sheetnecessarily varies to-a considerableextent, hence it is equally obvious that any Winding. head for sucoessiully winding material of the class descri'bed mustbe readily adjustable to these varying con- 5 ditions; I

, Another ifactori that makes the winding. ozfi roofing material more difficult is that the ma.- terial is extremely flexible limber, so; that the greatest care isnecessary to prevent n itsdoubling back at a sharp angle upon.'it self torthe reason that-When. it becoineshold and less flexible, attempts to straighten it out W1l I;eSu lt inbreaking and cracking. 3 a V For these reasons, it hasbeen found that 5' the angle at-which the; material approaches the rollers, that-isthe angle enclosedfbetwefin tangential-linesdrawntangent to each of two rol ls towardswhich theflmaterial to be wound is approaching, must not only be as large as m possible,-bu lmust be capable of being varied to suit the; thickness or the materialbeing wound, andalsothe thickness of the coating,

otherwise the winding headcrumplesthe ma:

terial and prevents-the successful winding my of the material into a hollow cylindrical body, which is necessaryin the roofing art. ,Anotherfnecessary'requisite; for. a; success ful roofing winding machine is that 'theface of the rollersthat. come in contact with the so surface. oii'the material must be perfectly smoothfand. polished. to} prevent injury tothe material being wound, J Should the rollers be notched, indentedfor gro'oved,.-either the sticky coating: would adhere to the rolls and build up. a rough surface on therolls, or the indentations and n otches would catch-on the soft,easily tornroofin 'g anddestroyitr, 7 Another condition metwith, and which be overcome, should should the go o viscous coating, or the finely ground second coating be thicker on one edge of the strip When winding light. thin. sheets the v presrial being wound.

sure of the winding rolls upon the roll of roofing material being formed must, of course, be less than when winding heavier stock. v

To meet the conditions and overcome the V objections above set forth, I have devised an s adjustable winding head capable of being adj usted to different pressures to suit different thicknesses and kinds of material and, also, capable of being independently adjusted at each'end of the roll being formed, and also adjustable, vertically relative to the mate- In Fig. 1, the horizontal dotted line 1 repre sents a sheet ofcoated paper passing'through the machine described'in my pending application; above referred to. The dotted line 1 in Fig.2 illustrates the necessity'of properly positioning'the winding rolls, which consists of three separate sets. The lower set 2 positioned in a horizontal lane consist of three rolls driven anti-cloc wise by means of sprockets and chains, not shown or claimed.

. Another set of rolls 3 consists of two rolls, also driven anti-clockwise, and adjustably sup ported upon'the movable arm 4. A third set of rolls 5 consistsof two rolls driven anticlockwise and adjust-ably supported by means of the arm 6. I In Fig. 1 the r0117 represents'theroll be ing formed. The sheet of roofing passes into the winding head from the feed roller 8, over the two rolls 9 and 10, andstrikes thethird roll 11 of the set 2, which revolving anticlockwise directs the. end of the roll upwardly untilit contacts with the roll 12 of the series'S, which continues to direct-the end of thesheet upwardly, and the same condition occurs when-the sheet strikes the rolls 13, 14 and15. v 1 f By-reference to the graphical illustration in Fig. 2, it'will be readily understood that should the rolls be disposed relativetoeach other insuch a'manner as to cause the incom ing sheet 1 to strike in theapex; of anangle, as for instance at16,instead of the sheet being formed into a roll, it would be caught and proven that shouldthe rolls be put in position so that lines 17 and 18 drawn tangent tothe rolls 20 and 22 formed an acute angle. at 16 instead of an obtuse angle as shown, it would beimpossible to form the sheet" intoa roll, hence-I have so designed my winding head that aline 18 drawn tangent to the roller 20, at the point C and a line 17 drawn tangent to the roller 22 at the point D, form an angle of more than 120 deg. So, also, it is necessary that the angle formed by any two lines drawn tangent to any two companion rolls must be as large as possible to prevent the rolls from crumpling the end of the sheet being Wound.

It has, also, been found by experience that the whole winding head must be adjusted, with reference to the horizontal line 1, in order to take care of different grades and thicknesses of material being wound. It is, 6

therefore, the method for adjusting the wind ing head thatconstitutes the essence of my invention, and it is quite obvious that other means than those indicated inthe drawing and herein described could be used for obtainingthe adjustments and varying the pressure of the winding rolls upon thewroll of material being wound. I In the present invention, the set of rolls-2 are rotatably mounted uponthe arm 23 and pivotally held in position partly by means of the link 24 and partly by means of the member 25 slidaibly movable upon the bracket 26, and held against longitudinal movement by the member 27 between the adjustingscrews 28 and 29. It is evident that if the member 25'be moved to the right. or to the left, it

would change the position of the rolls designated as a whole as 2, andalso change the relative position of the arm 6, on which the rolls let and 15 are mounted, the arm 6 being pivotally attached to the member 25. a

In order to regulate the pressure of the rolls 12 and 13 upon the roll 7 being formed, the arm 4, on which the rolls '12 and 13 are mounted is pivotally supported by the mem ber 82, which is alsoslidably mounted upon the frame and adjusted bythe screw's33 and 34. Since both sides of the machineare iden tical, the "same adjustments can be made at either side of the machine independent ofthe n other side of the machine. In order to vary the pressure of the winding rolls upon the roll being formed, a scale beam 35' is pro vided adjustably attached to the disc 36, whichin turn is pivoted about the point 37. An arm 38 is rigidly attached to the disc 36 at its upper end and pivotally attached to the link 39. at its lower-end, the opposite end of 1 the link 39 being pivotally attached at 40 to the arm 6. p

y A movable Weight 41 is adjustable along the scale beam 35 for regulating the pressure upon'the arm 6, and the 'rolls14and 15. A

like mechanism is provided'for. adjusting the j weight-upon the M1114, bymeans ofthe link connection 42. It is obvious that by means of the various adj ustmentsoutlined not-only can any desired pressure be exerted upon the roll 7 beingzformed, butalsojthe angle at which the sheet 11 approaches'the roller can be changed at will. v f

Having fully described my invention, What I claim as new and useful, and desire to secure by Letters Patent is:

A Winding mechanism of the class described, comprising a number of rotatable rollers mounted upon pivoted levers and grouped about a common center, means for orienting said rollers about a plurality of common centers, means for shifting said comw mon center in a vertical plane, gravitational means for regulating the pressure of said rollers upon a cylindrical roll of material being Wound in said Winding machine.

In Witness whereof I have hereunto aflixed my signature this 1st day of September, 1927.

GEORGE F. EOKSTEIN. I 

